So who is going to pay the bills for housing and food for unskilled/hostile guests?

Scores of migrants broke through a barbed-wire security fence on the Greece-Macedonia border Monday, as tensions over new restrictions along the key land route into Europe boiled over in violent scenes.

And more than 2,400 kilometers (1,500 miles) away in Calais, in northwest France, clashes erupted as authorities moved to dismantle structures at the "Jungle," an infamous migrant camp marked for partial demolition.

Crowds at a border camp near the Greek village of Idomeni on the Macedonian border, a main transit point for refugees traveling to western Europe, used a large pole to ram through the border gate, while authorities deployed tear gas and rubber bullets in an attempt to keep the chanting crowd at bay.

India is close to becoming the world’s sixth country to put a nuclear-armed submarine into operation, a move that would give it a leg up on neighboring Pakistan and intensify a race for more underwater weapons in Asia.

The 6,000-ton Arihant, developed over the past three decades under a secret government program, is completing its final trials in the Bay of Bengal, according to a senior navy officer who declined to be identified because he’s not authorized to speak about the program. The vessel will be operated by the navy yet remain under the direct control of India’s Nuclear Command Authority headed by Prime Minister Narendra Modi.

The deployment would complete India’s nuclear triad, allowing it to deliver atomic weapons from land, sea and air. Only the U.S. and Russia are considered full-fledged nuclear triad powers now, with China and India’s capabilities still largely untested.

India’s move may prod China to bolster its undersea arsenal and assist nuclear-armed allies Pakistan and North Korea in developing similar technologies. That risks potentially more dangerous altercations in Asia’s waters, where territorial disputes have contributed to a region-wide naval buildup.